#! /bin/bash

## Color control characters is like "\033[...m"

for ((i=0; i<8; i++)); do
  for ((j=0; j<8; j++)); do
    printf "\033[3${i};4${j}m x \033[0m"
  done
  printf "\n"
done

printf "\n\033[4mThis is underline test\033[0m\n\n"

